Dynamic Form

Wed Sep 23 12:40:08 EDT 2009

I've been trying the hidden field, but the problem is that when I set the
variable flag, it stays in memory. I would rather just pass a var like I've
been trying, but I don't think it's possible. Any ideas? Is a session cookie
the only way? Here's more simplified code:

#!/usr/bin/python

import cgitb; cgitb.enable()
import cgi
import sys,os
sys.path.append(os.getcwd())
import MySQLdb
import string, re

def client():
  form = cgi.FieldStorage()
  client = string.replace(string.replace(form.getfirst('client', ''), "'",
'''), '"', '"')
  flag = form.getfirst('flag', '')
  print "Content-Type: text/html"
  print
  print """
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Frameset//EN" "
http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd">
<head xmlns="http://www.w3.org/1999/xhtml">
<body>
"""
  if flag == '':
    print """
<form method="post" action="client.py">
Company Name: <input type='text' value='' size='20' maxlength='100'
name='client' /><br />
<input type='hidden' name='flag' value='y' />
<div align='center'>
  <input type='submit' value=' Send ' />
</div>
</form>
</body></html>
"""
  else:
    host = 'h'
    db = 'db'
    user = 'u'
    passwd = '1'
    database = MySQLdb.connect(host, user, passwd, db)
    cursor = database.cursor()
    cursor.execute('insert into companies (client);' % (client))
    cursor.close()
    print '</body></html>'

client()

TIA,
V

On Tue, Sep 22, 2009 at 1:43 PM, Dennis Lee Bieber <wlfraed at ix.netcom.com>wrote:

> On Tue, 22 Sep 2009 12:50:31 -0400, Victor Subervi
> <victorsubervi at gmail.com> declaimed the following in
> gmane.comp.python.general:
>
> > Well it's Web stuff, sure, but it's written in python :) The code
> follows.
> > The problem is that I haven't figured out how to tell the program that
> the
> > user has entered data and to clear the cache of that data so that it's
> not
> > re-entered. How do I do that?
>
>         Remember, HTTP is a stateless protocol. EACH submission is
> considered a totally new transaction with no memory of the previous
> processing.
>
>        Possible solutions...
>
> *       Use a session cookie that identifies what phase in the multistep
> processing you are in...
>
> *       Use a hidden field in the form that defaults to, say "False", when
> you first display the form, but then gets set to "True" during the first
> response process (and is then sent back out with "True" so the second
> response takes a different branch).
>
> --
>        Wulfraed         Dennis Lee Bieber               KD6MOG
>        wlfraed at ix.netcom.com   HTTP://wlfraed.home.netcom.com/
>
> --
> http://mail.python.org/mailman/listinfo/python-list
>
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